Washer



E. E. ELLMANN, F. A. KELL AND L. L. ZACHARIAS.

WASHER.

APPLICATION FILED MAY5, 1920.

1,373 0 1, PatentedMar. 29,1921.

UNITED STATES PATENT orr ce.

ERNEST E. ELLMANN, FRANK .A. KELL. AND LEONARD L. ZACHARIAS, OF ST. LOUIS MISSOURI; SAID KELL AND ZACI-IARIAS ASSIGNORS T0 SAID ELLMANN.

WASHER.

Specification of Letters Patent.

Patented Mar. 29, 1921.

Original app1ication fi1ed November 13, 1919, Seria1 No. 337,700. Divided and this application fil ed May 5, 1920. Serial No. 379,020.

To all whom it may concern:

Be it known that we, EnNns'r E. ELT. MANN. FRANK A. KELL, and Lnonann L. ZAoHAnms, citizens of the United States, and residents of the city of St. Louis and State of llfiissouri, have invented. certain new and useful Improvements in Washers, of which the following is a. specification containing a full. clear, and exact description, references being had to the accompanying drawings, forming a part thereof.

@ur invention relates to improvements in washers, and has for its primary object the construction of a washer for locking nuts, and of such shape that it will not turn when applied to the work, and so devised that it takes up or compensates For the stretching of: the bolt on which it is used.

The washer is specially constructed for railway track construction, rigid, etc.

In the drawings:

Figure l is an end view of: a railroad rail having fish plates on each side with a bolt extending therethrough and our improved washer shown in position; and

Fig. 2 is a perspective view of our improved washer.

This application is a division of" our ap plication filed November 1.3, 1919, Serial No. 337,700, and allowed h lareh 231., i920.

Referring to the drawings:

3 indicates a railroad rail and d the fish plates which are of the ordinary constructiou. Through the fish plates and the web 5 of the rail the bolt 6 of ordinary construction. is passed. Over the threaded end of the bolt 6 we place our improved washer 7, as illustrated in Fig. 2. This washer is formed of spring steel and through its vertical section, when in use. is mncavo-c mvex, and is provided with the usual bolt opening 8. 9 indicz'ites a slit which is termed in the washer and extends from the bolt opening- 8 entirely through the material surrounding the opening. 10 indicates an Lip-turned edge formed in the washer adjacent the slit 9. This Tip-turned pldgenilnswers as a holdcr or step against i. is sne ol the nut ll when said nut has been applied. t will be observed that this shoulder or edge 10 is inclined and is resilient so that the nut may freely pass thereover when being applied and tight ened. As previously pointed out, the washer is concavo-convex and is resilient for the purpose of. taking up or conipensatin for the stretching or clono'atinn' o't thli bolt 6. v a a It will further be observed that the angular IiOl'll'lEIlllOll oi the washer when its lower edge is resting against the fish plate. will prevent the washer from turning. Ii de sued, the concaveconvexity of? the washer may be eliminated and the washer formed flat, in which instance it is desirable to pro-- vide the washer probably with. a wider shoulder or lip-turned edge 10.

.[t will be observed that the nut ll. beino softer than the spring steel washer T that the bent up portion lOwill engage the inside face of the washer and dig" into the same and answer as a stop to prevent the washer :troin turning or loosening.

Having fully described our invention, what we claim is:

A. washer stamped lroin a single piece of material and, being); coucavo-conveX in cross section and provided with the usual bolt opening and. an angular edge so as to pre vent the said washer from turning, a slit radially arranged with relation to the bolt opening and extending entirely Ih'OITL the inner edge oil? said opening to the edge of the washer. and an rip-turned resilient and relatively sharp edge Formed integrnl with the washer and opposite to the lit and having; its edge arranged radially with respect to the inner edge of the bolt opening.

In testimony whereof we have signed our names to this specification.

ERNEST E. ELLMANN. FRANK A. KELL. LEONARD L. ZACHARIAS. 

